卢崖寺水库放水管加固工程设计

Design of Reinforcement Project of Discharge Pipe of Luyasi Reservoir

放水管内共有5处射流孔。其中,黏土心墙上游侧有3处,距启闭塔工作闸门15.6 m;黏土心墙下游侧有2处,位于混凝土内衬末端的原浆砌石洞身上,该处距底板20 cm(高程410.30 m左右)。限于当时的技术经济及施工条件,放水管内衬混凝土密实度较差,且未设止水,其他位置混凝土内衬施工缝多存在渗漏痕迹或钙化物析出现象。

There are 5 jet holes in the discharge pipe.Among them,there are 3 locations on the upstream side of the clay core wall,15.6 m away from the working gate of the hoist tower;there are two places on the downstream side of the clay core wall,which are located on the virgin stone cave at the end of the concrete lining,20 cm away from the bottom plate(about 410.30 m in elevation).Limited by the technical economy and construction conditions at the time,the concrete lining of the drain pipe is of poor compactness,and there is no water stop,in other locations,the con⁃crete lining construction joints often have leakage marks or calcifications.